diff options
| author | Simon Glass <sjg@chromium.org> | 2019-09-15 21:08:58 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-10-08 08:57:43 +0300 |
| commit | 33c215af4b9de32e5052bb716411dc34ce9b63ac (patch) | |
| tree | 36b6e9cc1fba5109206109b94a85fa64e6a0e6f7 /drivers/serial | |
| parent | 6a73cf3d8fe32f3bddd4ba7dd47dcb75df5ca592 (diff) | |
| download | u-boot-33c215af4b9de32e5052bb716411dc34ce9b63ac.tar.xz | |
dm: pci: Add a function to read a PCI BAR
At present PCI address transaction is not supported so drivers must
manually read the correct BAR after reading the device tree info. The
ns16550 has a suitable implementation, so move this code into the core
DM support.
Note that there is no live-tree equivalent at present.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: correct the unclear comments in test.dts]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/ns16550.c | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 01f334938e..754b6e9921 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -440,36 +440,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev) int err; /* try Processor Local Bus device first */ - addr = dev_read_addr(dev); -#if CONFIG_IS_ENABLED(PCI) && defined(CONFIG_DM_PCI) - if (addr == FDT_ADDR_T_NONE) { - /* then try pci device */ - struct fdt_pci_addr pci_addr; - u32 bar; - int ret; - - /* we prefer to use a memory-mapped register */ - ret = fdtdec_get_pci_addr(gd->fdt_blob, dev_of_offset(dev), - FDT_PCI_SPACE_MEM32, "reg", - &pci_addr); - if (ret) { - /* try if there is any i/o-mapped register */ - ret = fdtdec_get_pci_addr(gd->fdt_blob, - dev_of_offset(dev), - FDT_PCI_SPACE_IO, - "reg", &pci_addr); - if (ret) - return ret; - } - - ret = fdtdec_get_pci_bar32(dev, &pci_addr, &bar); - if (ret) - return ret; - - addr = bar; - } -#endif - + addr = dev_read_addr_pci(dev); if (addr == FDT_ADDR_T_NONE) return -EINVAL; |